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 * Copyright (c) 2013, 2022, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 */
package org.graalvm.visualizer.filter;

import jdk.graal.compiler.graphio.parsing.model.ChangedEvent;
import jdk.graal.compiler.graphio.parsing.model.Properties;
import org.openide.cookies.OpenCookie;
import org.openide.util.Lookup;

public abstract class AbstractFilter implements Filter {

    private final ChangedEvent<Filter> changedEvent;
    private final Properties properties;
    private final Lookup lkp;

    protected AbstractFilter() {
        this(Lookup.EMPTY);
    }

    public AbstractFilter(Lookup lkp) {
        this.lkp = lkp == null ? Lookup.EMPTY : lkp;
        changedEvent = new ChangedEvent<Filter>(this);
        properties = Properties.newProperties();
    }

    @Override
    public Properties getProperties() {
        return properties;
    }

    @Override
    public OpenCookie getEditor() {
        return null;
    }

    @Override
    public ChangedEvent<Filter> getChangedEvent() {
        return changedEvent;
    }

    protected void fireChangedEvent() {
        changedEvent.fire();
    }

    protected void checkCancelled() {
        FilterExecution ex = FilterExecution.get();
        if (ex != null && ex.isCancelled()) {
            throw new FilterCanceledException(ex.getEnvironment());
        }
    }

    public Lookup getLookup() {
        return lkp;
    }
}
